How to use the gpa and percentage scale converter
- Choose a conversion: Rescale a GPA to another top value, or turn a percentage into GPA points using grade bands.
- To rescale, enter your GPA, the top value of the scale you have and the top value of the scale you want. The first two default to 4 and 5 as an example.
- To use bands, enter the percentage and edit the table of bands so it matches the table your school or district publishes. Add a row for each band.
- Read the result and the steps. Copy the result or print it for your records.
Formula
Rescaled GPA = GPA / top of your scale x top of the new scale
Percentage grade to points = the points of the band with the highest start at or below the percentage
Results are rounded to two decimals, half up
Rescaling is a simple proportion. A band table follows the rules you enter.
Worked examples
A GPA of 3.5 on a 4.0 scale is 3.5 / 4 = 0.875 of the top, which is 4.375 on a 5.0 scale. Rounded half up to two decimals this is 4.38, and it is 87.5% of the top value. A 3.0 on a 4.0 scale is 7.5 on a 10 point scale.
With the example bands (90% and up is 4, 80% is 3, 70% is 2, 60% is 1 and below that is 0), a 87% grade falls in the band that starts at 80%, which is worth 3 points. A 90% grade is 4 points, 89.99% is 3 and 59.9% is 0. These bands are only an example, so replace them with the ones that apply to you.
Why there is no single conversion
GPA scales are not standardized. Schools use 4.0, 4.3, 5.0, 10 or 100 point scales, with or without plus and minus grades, and some weight honors courses. A percentage can map to different GPA points at different schools. For that reason this tool does not hold a built-in conversion table. It rescales proportionally, which is a fair rough comparison, or it applies the bands that you enter.
If an application, scholarship or employer asks for a specific conversion, use their instructions or the school's own published table. Official transcripts and credential evaluations are the right source for formal decisions, and the result here is only an estimate for planning and comparison.
Making the bands match your school
Enter each band as the lowest percentage it covers and the GPA points it is worth. The tool sorts them from highest to lowest and picks the first band that your percentage reaches. Include a band that starts at 0 so every grade is covered. Two bands cannot start at the same percentage.
Your grades are not stored, and the percentage and GPA are left out of share links. To find a GPA from course grades, use the GPA calculator. To work out what score you need, try the grade calculator, and to compare standing, the class rank percentile calculator.
Assumptions and limits
- Rescaling assumes the new scale is proportional to the old one, which institutions often do not use.
- The default bands are an example only and are not a standard or an official table.
- Weighted courses, plus and minus grades and school rules are not modeled unless you enter them as bands.
- Results are estimates and are not a substitute for an official conversion or credential evaluation.
Frequently asked questions
How do I convert a 4.0 GPA to a 5.0 scale?
Divide your GPA by 4 and multiply by 5. A 3.5 becomes 4.375, shown as 4.38. This is a proportional estimate. Schools that weight classes may convert differently.
Can I convert a percentage to GPA exactly?
Only with the table your school or district uses. There is no single national table, so enter your own bands in the tool and it applies them to your percentage.
Why is the result rounded half up?
Half up means 4.375 becomes 4.38 rather than 4.37. This matches the usual school convention for rounding, and the unrounded number is shown too, so you can see exactly what was rounded.
Will colleges accept a GPA converted with this tool?
Treat it as an estimate. Applications usually ask for the GPA from your transcript or give their own scale, so follow their instructions for anything official.